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Earth Topics (Applications)
Instrument type
Instrument
  • WS
  • Mission
    ERS
    Operators:
    ESA
    Date of Launch:
    ERS-1 - 17 July 1991
    ERS-2 - 21 April 1995
    Mission Status:
    ERS-1 ended on March 2000 and ERS-2 September 2011 
    Orbit Height:
    782 to 785 km
    Orbit type:
    Near-circular, polar, Sun-synchronous
    Swath Width:
    5 km
    SCATTEROMETER Nominal Resolution back-scattering measurements, Ocean Wind field
    (ERS.UWI)
    ERS
    (1008) recent views
    Last update: 08 September 2017

    The ERS data reprocessed with the ASPS facility is also available in the UWI format to maintain the compatibility with the FD products.

    The ASPS UWI product is organized in frames of 500 x 500 km providing the radar backscattering sigma nought for the three beams of the instrument plus the wind speed and direction.

    The wind retrieval is performed with the CMOD5N geophysical model function derived by ECMWF to compute the neutral winds rather than 10m winds.

    ASPS UWI products are provided with a spatial of 50x50km and a grid spacing of 25 km. One product covers one orbit from ascending node crossing.

    Data Set Specifications
    Spatial coverage: 82 N, 82 S, 180 W, 180 E
    Temporal coverage: 1996-03-26 - 2011-07-05
    Current Processor Version: ASPS 10.04
    Processing level
    Level 2
    How to access this data

    The data is distributed in UWI format via FTP upon registration.

    Reprocessed Data: ERS-2 data are available from 26 March 1996 to 05 July 2011. See WS products table (PDF, 108 kb).

    See related news on the ERS-2 Scatterometer Level 2 reprocessing of 14 May 2015.

    Terms & Conditions applicable
    Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
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